Thus, the letter "d" is perceived as a circle and a line.

因此，字母“d”被认为是一个圆加一条线。

youdao

D. Purchasing's knowledge of product line discontinuances.

采购部门了解生产线的不连贯性。

youdao

3-d border style will appear as single line borders.

三维边框线型将显示为单线型边框。

youdao

3-d border style will appear as single line borders.

三维边框线型将显示为单线型边框。

youdao